/*
 * @Description: 接口的扩展和合并
 * @Autor: HuiSir<273250950@qq.com>
 * @Date: 2021-04-30 16:48:20
 * @LastEditTime: 2021-04-30 16:58:49
 */
/* 实现 */
var user = {
    name: "小明",
    age: 12
};
/*
最终 Dog 接口为
interface Dog {
    name: string
    type: string
}
*/ 
